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Patents for Joseph M. McMaster
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	118,809	Sep. 12, 1871	J.M. McMaster	Improvement in blacking apparatus and bootjack combined
	120,823	Nov. 14, 1871	J.M. McMaster	Improvement in propulsion of canal-boats

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